The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of Meteorology Modelling Activities at CAWCR, 2014 Presenter: Gary Dietachmayer, on behalf of colleagues throughout CAWCR WGNE-29 Melbourne, 10-13 March 2014
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The Centre for Australian Weather and Climate ResearchA partnership between CSIRO and the Bureau of Meteorology
Modelling Activities at CAWCR, 2014
Presenter: Gary Dietachmayer, on behalf of colleagues throughout CAWCR
WGNE-29Melbourne, 10-13 March 2014
• POAMA-M24 (Seasonal prediction system) – March 27, 2013
• APS1 ACCESS-R – Apr-17 2013
• APS1 ACCESS-C – Oct-8 2013
• Solar – Ngamai switch – Dec 2013
• APS1 ACCESS-TC – Dec-19 2013
• (NWP) Ensembles
• NCI / NeCTAR (Tuesday – Tim Pugh)
• SREP / FDP (Wednesday Hi-res NWP)
The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of MeteorologyWGNE-29, Melbourne, 10-13 March 2014
Major forecast systems summary
The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of MeteorologyWGNE-29, Melbourne, 10-13 March 2014
A reminder on forecast system names ….
ACCESS – G / R / C / TC “POAMA” – Predictive Ocean Atmosphere model for Australia
The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of MeteorologyWGNE-29, Melbourne, 10-13 March 2014
The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of MeteorologyWGNE-29, Melbourne, 10-13 March 2014
From Best et al (2006)
• “model runs revealed MOSES2.2 to be sensitive to changes in the canopy heat storage”
• “Model performance was optimum with heat capacity values smaller than those generally considered”
• The Urban tile canopy heat capacity parameter is “not well defined and cannot be measured”
• “we conclude that the basic canopy scheme in MOSES 2.2 does not adequately capture the physical processes of the urban atmosphere to accurately represent an urban area.”
1) Many observing stations are in Urban areas1) Most Australians live in the Big cities!
2) Properties of the Urban tile and Tree heights are important
3) Models make simplistic assumptions about tree heights4) Need for an accurate spatial map of Tree heights5) Need for Improved Urban and Lake Tile Models for
ACCESS6) We have performed NWP tests with revised Urban
parameters and tree heights that show significant improvements in forecasts